VS 2008 Binary Serialization - Save An Array Into My .bin File Then Read The Array Again
Nov 27, 2009Can I save an array into my .bin file then read the array again just like a string or Integer??
View 2 RepliesCan I save an array into my .bin file then read the array again just like a string or Integer??
View 2 RepliesSome binary files have application variables at the end if you open it with a text editor you can see these variables. Now when I read these files into the processor memory the program does not work properly, however if I read a file without this it works fine. So how can I read a byte[] array to EOF so that when I pass that byte array into win32 api create-process it will create the process without corrupting the program?
View 3 RepliesI have an image that has dimension of (100,100). I am using FileStream class. When I run the code I get EndOfStreamException error at line 44. I have pasted the for loop section of the code below.
For x = 0 To 99
For y = 0 To 99
byteRead1(x, y) = br1.ReadByte ' line 44 (exception thrown here)
[code].....
I'm trying to read the binary data from a binary file with the code below but the it's return the value in the byte array. How can i read the binary data from the binary file and then convert the data into string?This is how i create the binary file.
Dim fs As New FileStream(Application.StartupPath & "Agency.dat", FileMode.OpenOrCreate)
Dim bf As New BinaryFormatter()
Call bf.Serialize(fs, GAgency)[code]....
I have a device with upon serial communication, it send the data as HEX values, (e.g., C020042ABD0F91A103E400F929EBC). I use the following code to get data from the serial port.
Dim fStream As New FileStream(sFileName, FileMode.CreateNew) ' creates new file
Dim bw As New BinaryWriter(fStream)
System.Threading.Thread.Sleep(1500)
ComTd.Read(data, 1, bCount)
Dim bCount As Integer = 4119 ' it is the size of the chunk not block size
Dim data(bCount) As Byte
[Code] .....
I have a client and server: I cant get the server to extract the byte sent to it.
Server:
Imports System.Net.Sockets
Imports System.Threading
Imports System.IO
Imports System.Net
[Code]...
I need to create a collection of millions of objects, each object has 3 double and one integer fields.If I remember (after more than 20 years without using C) in C you would allocate enough memory using a struct and an array, and read all the file content in one shot.In VB I created a class with the 4 members, and this constructor:
Sub New(BR As IO.BinaryReader)
X = BR.ReadDouble
Y = BR.ReadDouble
[code]....
im trying to make an example program for a teacher friend of mine
Springfield
Toledo
Youngstown
[Code]....
thats just what i have so far but im really having trouble getting the other part into a 2d array. i want the second half to look like this when done: the oppsite of what it looks like in the file.
001
359
203948
I want to save some data to a binary file, and read it later, as in several strings of data.
My objective:
To save the following things...
1. 3 different strings of data, and be able to easily read them later.
i need to read binary file and in this file found the string and replace it with other one and save the file afterwords. I found many example to read binary, but to find and replace is for me mistery.
View 3 RepliesHow can I write and read a string array to a text file?
View 2 Replieshow to save an array of structure to binary file. I tried the binary formatter but it still aint workin. My code attached
Dim directoryList As String()
Dim fileData() As myData
Dim myFile As myProps
[Code].....
I try to read a stream and save it as byte array to add it later to zip file.this is the code that I use
Dim totalbytes As Byte() = Nothing
Dim iBytesRead As Integer
Dim sChunks As FileStream = File.OpenRead("c:myfile.wav")
Dim Totalread As Int64 = 0
[code]....
but there is something is not correct,
I am working with binary files that have 500 rows and 500 columns (width x height). When I load these files into array I set width and height variables to 500 and I was wondering instead of hard-coding like that how I can code in a way that the program should find the # of rows and # of columns of the file before loading the file into array...
View 15 RepliesI have a device with upon serial communication , it send the data as HEX values , (eg, C020042ABD0F91A103E400F929EBC) . I use the following code to get data from the serial port.
Dim fStream As New FileStream(sFileName, FileMode.CreateNew) ' creates new file
Dim bw As New BinaryWriter(fStream)
System.Threading.Thread.Sleep(1500)
ComTd.Read(data, 1, bCount)
[code]....
How do I read a raw byte array from any file, and write that byte array back into a new file?
View 3 RepliesI used the ideas from this post to create a custom collection of my custom class, so that I would be able to easily sort my collection. My project uses binary serialization to save everything (well the important stuff anyway) to a file. The problem is that my custom collection now breaks the serialization.I can't seem to figure out how to get the custom collection to serialize![code]
View 10 RepliesThe gist of the program is to:
- Read a CSV file into an array
- Get this visible in a list box, so the values can be:
- Sorted
- Edited
- Deleted
- Added
- Finally save these manipulated values back to the text file
I want to compare two array and save the miss match character into 3rd array.
View 1 RepliesI'm trying to read a file line by line into an array but It skips the item at index:3 I have it msgboxing just to make sure and it wont even touch it.
Dim Btn As Button = DirectCast(sender, Button)
Dim path As String = Application.StartupPath & "Libraries" & Btn.Text.Replace(" ", "_") & ".ipt"
Dim i As Integer = 0
Dim lines As String() = IO.File.ReadAllLines(path)
[code]....
I ran across my first unicode data, and I am not sure what to do with it. I read the unicode text from a binary file using the ReadBytes method, because ReadChars threw an exception when it tried it. Well, long story short, I have found a way to work with the data, I can convert it using a small Function I wrote, which goes something like this: [Code] And this works wonderfully. It just throws away anything not in the ASCII range, including the BOM at the start of the unicode data.
But I would guess that this method is not very universal and probably not the best way. Are there any VB functions available to do this sort of thing? I was able to find something called Text.Encoding, but there didn't seem to be a reverse of that not that I found anyhow. Any ideas?
I have been trying to research how to get a file (basically a csv file) from a url to an array and my search has come up with some examples, but not quite what I am looking for. Would appreciated any direction and or other examples of folks that have done this before.Basically we have a cloud computer set up (Hadoop) and the output of some of our processes is what I am trying to get to.[code]....
View 1 RepliesI have a function that reads a character array from a file, converts it to a byte array, then writes it to a Network Analyzer. The problem is the conversion takes forever as the size of the array is about 287,000.... Here is the code..
Code:
Dim objSR As New IO.StreamReader(strPath)
Dim charA As Array = objSR.ReadToEnd.ToCharArray
ReDim bytedata(UBound(charA))
[Code].....
I have a two dimensional array as string and I what to save it to a file, what should I do?
View 1 RepliesI have a string array that is populated with thousands of entries. I am wanting the quickest way to save this data to disk and to also load it back up.
Currently I am looping through the array and appending this data to a string and then saving this string. This takes a long time.
What is the fastest/most efficient way to do this?
I'm trying to read a text file by use a array for an interactive map. In the text file I stored shop names such as:
Label2.Tag = "test"
Label3.Tag = "House"
When I hover over a label it will display the name in another label such as "lblShowName".
So far I have the array that reads the text file.
dim shopNames() as string = io.file.readalllines("fileName")
How can I convert a file to an integer array? I have been using this method but I'm hoping there is an easier way:
Dim StreamRead As New System.IO.StreamReader(FileName)
Dim file() As Integer
Dim loops As Integer = -1
[code].....
The file I need to read in is a square 8x8 or NxN. the chars are separated by spaces and at the end of the line I believe a crlf. When I try to read in the file i get the crlf's when i use this [Code]
View 1 RepliesIs there any special way of reading a pdf file into a byte array? The reason I ask...I want to fax a pdf file using faxDocument and FaxServer. My current code is working fine for everything else. Now I know that in the documention it says it should not work for pdf. But I can get some pdfs to send and some do not. When I fax a pdf through windows, it works. [code]....
View 5 RepliesI'm trying to read specific values from the text file (below)[code]...
How do I store only the data I require in the array? I've tried split and substring but cannot work out a usable method - I need on the text after the colon for each line.